Panasonic has released its August 2023 lens roadmap for the Pansonic Lumix S series interchangeable lenses for L mount cameras. While they are Panasonic lenses, they will of course work on Leica and Sigma cameras as well.
No specific focal lengths have been provided for the lenses, although the prime lens is quite obvious. The Zoom lenses give a reasonable enough range to make a good guess, too. We can also probably guess other specs, too.